Holding(s) in Company

Centrica PLC
                  

Centrica plc received on 6 March 2006 a notification stating that the notifiable
interest for the purposes of section 198 of the Companies Act 1985 of Barclays
plc in Centrica plc had reduced.

SCHEDULE 10

NOTIFICATION OF MAJOR INTERESTS IN SHARES 1. Name of company

Centrica plc

2. Name of shareholder(s) having a major interest

Barclays plc

3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18

See section 4

4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them

Barclays Global Investors Japan Ltd                            1,736,474
Barclays Bank Trust Company Ltd                                  104,128
Barclays Global Investors Ltd                                 55,380,438
Gerrard Limited                                               19,213,474
Barclays Private Bank and Trust Ltd                               16,460
Barclays Global Investors Australia Ltd                        1,390,080
Barclays Global Investors, N.A.                               40,992,058
Barclays Global Investors Canada Ltd                             243,044
Barclays Global Fund Advisors                                 10,533,935
Barclays Life Assurance Co Ltd                                 6,256,328
Barclays Global Investors Japan Trust & Banking                4,322,174
Barclays Private Bank Ltd                                      2,460,423
Barclays Capital Securities Ltd                                1,252,548

5. Number of shares / amount of stock acquired

N/A

6. Percentage of issued class

N/A

7. Number of shares / amount of stock disposed

Not known

8. Percentage of issued class

Not known

9. Class of security

Ordinary 6 14/81 pence

10. Date of transaction

Not known

11. Date company informed

6 March 2006

12. Total holding following this notification

143,901,564

13. Total percentage holding of issued class following this notification

3.98%

14. Any additional information

None

15. Name of contact and telephone number for queries

Robin Healy  01753 494 017

16. Name and signature of authorised company official responsible for making
this notification

Robin Healy

Date of notification

6 March 2006